1. Department of Interventional Ultrasound, the First Medical Center of Chinese PLA General Hospital, Beijing, China
2. Medical School of Chinese PLA, Beijing, China
3. Department of Ultrasound, The Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
4. Department of Medical Ultrasonics, Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
5. Department of Ultrasound, Harbin Medical University Cancer Hospital, Harbin, China
6. Department of Ultrasound, The Second Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
7. Department of Ultrasound, Wuhan University of Science and Technology, Tianyou Hospital, Wuhan, China